The capacitance of electrochemical capacitors may be improved by providing additional charge originating from faradaic reactions. Faradaic reactions may originate from appropriate modification of the electrode or the electrolyte. The introduction of thiourea to the electrolyte is a novel approach. The tests in 1 mol dm⁻³ of Na₂SO₄ aqueous electrolyte (pH = 6.2) with thiourea addition showed a reversible redox process resulting in the increase of capacitance from 131 F g⁻¹ for non-modified electrolyte to 229 F g⁻¹ for those modified with thiourea.

中文翻译：

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具有硫脲基水性电解质的电化学超级电容器

可通过提供源自法拉第反应的额外电荷来改善电化学电容器的电容。法拉第反应可能源自电极或电解质的适当改性。将硫脲引入电解质是一种新颖的方法。在1个摩尔分米试验^-3的Na ₂ SO ₄水电解质（pH为= 6.2）与硫脲加成表明导致电容的来自131 F G的增加的可逆氧化还原过程^-1非改性电解质至229 F G ^-硫脲修饰的那些为¹。